Automatic bucket.



P-ATBNTED AUG. 4, 1908. R

s. E. ATHEBTON.

AUTOMATIC BUCKET. APPLIOLTXOK IVILBD HOV. 4,1;901

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wwww M 21 744/ I? .zZZ (5' 7 way PATBNTED AUG. 4, 1908.

s. B. ATHERTON.

AUTOMATIC BUCKET.

urmonron 1mm) nov.4, 1901.

2 SHEETS-SHEET I.

mm oFFIoE,

STANLEY E. A THERTON, OF CLEVELAND, OHIO.

\l g- AUTOMATIC BUGICETI Application filed November 4, 1907. Serial No.400,431.

To all whom "it may concern:

Be it known that I, STANLEY E. ATnERr'oN,

a citizen of the UnitedStates, and resident of Cleveland, county ofCuyahoga, State of Ohio, have invented certain new and usefulImprovements in Automatic Buckets, of wlnch I hereby declare thefollowing to be a full, clear, and exact description, such as willenable others skilled in-the art to which it appertains to make and usethe same.

The objects of the invention are to provide an automatic bucket havingtwo valves or scoop portions and in which power mechanism 1s employed toclose the valve tightly together upon the load and which can be raisedto any desired level in the closed position and afterwards the valvescan be permitted to open to release the load.

The particular characteristics of this invention are found in the bellcrank and lever mechanism operating conjointly upon a cen tral commonpivotal point for the valves, and upon the supporting bail arms, andemployed in connection with hold up and closing lines whereby the weightof the automatic bucket may be made to provide the necessary stabilityand resistance to give efiicency to the working parts.

The invention further consists in the combination and arrangement ofparts and construction of the various details as hereinafter described,shown in the accompanying draw-- ings and specifically pointed out inthe claims.

In the accompanying drawings, Figure 1 is a side elevation of theautomatic bucket showing the valves in the closed position, and showinthe valves in their open position in dotted lines, and the other partsin their relative positions thereto; Fi 2 is an edge view of the bucketshown in Fig. 1. Fig. 3 shows the positions of the parts when the valvesare open.

In these views 1, 1 are the valves or scoop portions pivoted together bymeans of the shaft 2, which runs transversely across the top of thebucket, and is attached to the ears 3 of the buckets in line with tneirmeeting edges 4. The pairs of bail arms 5 and 5 respectively are pivotedat 6 to the upper and outer edges of the buckets and have a commonpivotal shaft 7 to which their upper ends are attached, 8 is the bail towhich the hold up line 9 is secured. valves tightly and powerfullytogether a bell crank .10 is pivoted upon the pivot shaft 2 toSpecification of Letters Patent.

To close the liatented Aug. 4, 1908..

which the valves are attached. This bell crank is provided with the longarm 11 and short arm or preferably arms 12, 12. To the extremities ofthe short arms 12, 12 are pivoted at one end the links or draw bars 13,

at'14, 14 upon one set 5, 5, of the bail arms. The position of thepivotal point thereon be ing determined to obtain the greatest leveragecombined with smoothness of action and ellieiency of the working arts.At the outer end of the long arm 0 the bell crank is shown a pulle 15and a guide pulley 16 is mounted closely adjacent to the bail arms 5,and preferably uponthem. line 17 is attached to a dead point- 18 uponthe pair of bail arms 5' and passes filst over the pulley 15, thenceover theguide pulley 16 and thence above and parallel to the hold upline to the ordinary hold up machine which is shown.

The device is operated by pulling upon the closing line, which has theeffect of directly drawing upon the dead oints in the ball arms 5 andsimultaneous y therewith operating the bell crank and draw bars to drawwith commensurate force upon the bail arms 5, thus closing the valvestightly upon the load. In raising the bucket both lines are employed andwhen it is desired to release the bucket the closing line is released sothat the weight of the bucket will come entirely upon the hold up line.The parts will then take the open position shown in Fig. 1.

It is important that )urchase points should be obtained for the closingrope upon both the power end of the bell crank, and upon the upperportion of the bailarms, so that the parts can be brought forciblytogether. i

I do not con'linc the invention to the exact posit-ion of the deadpoints or the exact character of the block and tackle mechanism, but the)urchase upon the bail arm or arms should be high enough thereon toprovide for the necessary movement of the bell crank.

The exact relative proportions of the various parts can be modified tosuit various conditions of load or desired movements and are not of thes irit of this invention but 'hat I claim as new and desire to'secure byLetters Patent isf 1. In an automatic bucket, the combination withvalves pivoted together, and pro- The closing not a part of thisinvention and hence is not 13 the other extremities of which are pivotedvided with bail arms pi\-'otcd together. at their upper ends, of a holdup hue attached pair of bail arms, and a closing line, passing.

over said pulleys and having a dead point of attachment in the oppositepair of bail arms. 2. In combination in an automatic bucket havingvalves pivoted together at their upper sides in line with meeting edges,two pairs of bail arms, pivotally attached to the upper and outer edgesof the valves and ivoted to each other on the center line of t 1ebucket, and means for closing said valves together consisting of, a bellcrank and pivoted shat t, said shaft forming the connecting pivot forsaid valves, a pair of draw bars connecting one extremity of said bellc: ink and one pair of bail arms, a pulley on the other extremity ofsaid bell crank, a guide pulley closely adjacent thereto, a closing ropepassing over said pulleys and having a purchase upon the bail arms, anda hold up line for said bail arms.

3. In combination, in an automatic bucket having valves pivotedtogether-at their up per sides in line with their meeting edges,

ail arms pivotal] y attached to the upper and outer edges of the valvesand pivoted to each other on the center line of the bucket, a hold upline for said bail arms and means for closing said valves together,consisting of a bell crank and pivot shaft therefor, said pivot shaftforming also the common pivot shaft for said valves, a draw barconnecting one arm of said bell crank with the bail arms for one valve,a closing rope and a block and tackle device connecting the outer end ofthe other arm with one of said bail arms substantially at the upperextremity thereof.

In testimony whereof I hereunto set my hand this 26th day of October1907.

STANLEY E. ATHERT ON. \Vitnesses:

Gno. S. COLE, WM. M. Mormon.

